Hinge Plate Assembly Blueprint - Custom Sidestand Bracket Drawing (Yamaha YZ450F)

This document is a black-and-white CAD-style line drawing (blueprint) titled "Hinge plate assembely" (sic). It shows an isometric view of a hinge plate assembly consisting of an angled, elongated bracket arm with a curved hook-shaped top end and a circular hole near its upper-middle section. Two flat square mounting plates are attached to the assembly: one near the upper right side and one at the lower end of the bracket arm, each with a single circular hole through its center. The drawing contains no dimensions, part numbers, material callouts, tolerances, or annotations beyond the title text. It appears to be one page of a multi-page fabrication drawing set (related files in the album include Baseplate, Plates, Sidestand, and Sidestandlift), likely documenting a homemade or custom sidestand/hinge mechanism. A reader can learn the general shape and configuration of the hinge plate assembly — how the bracket arm, hook end, and two drilled square plates fit together — but cannot derive measurements or hardware specifications from this page alone. The drawing does not identify any vehicle make, model, or year.